EP3301290A1 - Système à canaux pour un moteur à combustion interne - Google Patents

Système à canaux pour un moteur à combustion interne Download PDF

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Publication number
EP3301290A1
EP3301290A1 EP17193450.8A EP17193450A EP3301290A1 EP 3301290 A1 EP3301290 A1 EP 3301290A1 EP 17193450 A EP17193450 A EP 17193450A EP 3301290 A1 EP3301290 A1 EP 3301290A1
Authority
EP
European Patent Office
Prior art keywords
channel
fresh air
blow
duct
mixing housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17193450.8A
Other languages
German (de)
English (en)
Other versions
EP3301290B1 (fr
Inventor
Jean KÜBBELER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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Filing date
Publication date
Application filed by Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP3301290A1 publication Critical patent/EP3301290A1/fr
Application granted granted Critical
Publication of EP3301290B1 publication Critical patent/EP3301290B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/21—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M2013/0038—Layout of crankcase breathing systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0276—Throttle and EGR-valve operated together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/51—EGR valves combined with other devices, e.g. with intake valves or compressors

Definitions

  • the present invention relates to a duct system for an internal combustion engine with a mixing housing, a blow-by channel, which is connected to the venting of a crankcase of the internal combustion engine with the crankcase and opens into the mixing housing, and a fresh air duct, which opens into the mixing housing, over the fresh air can be fed.
  • the duct system further comprises an exhaust gas recirculation channel, which opens into the mixing housing, via which an exhaust gas stream can be fed and an intake duct, via which a mixed stream can be discharged.
  • Such duct systems are known from the prior art and are used in an internal combustion engine for the return of exhaust gases to the internal combustion engine.
  • such duct systems can be used simultaneously to return blow-by gases, which arise when venting the crankcase to the internal combustion engine.
  • the US 5,611,204 discloses a duct system in which the venturi effect is utilized to supply either recirculated exhaust gas or blow-by gas to the fresh air stream.
  • the DE 10 2014 114 968 A1 discloses a duct system in which a control body is provided, which has a first flap for closing a fresh air outlet and a second flap for closing an exhaust gas recirculation orifice.
  • the control body regulates a fresh air flow as a function of an exhaust gas flow.
  • the mixture of fresh air and recirculated exhaust gas is then passed in the duct system to an intake passage.
  • the object of the present invention is therefore to provide a duct system for an internal combustion engine, in which there is less noise.
  • the fresh air channel and the blow-by channel opens into the mixing housing in parallel.
  • the channel central axes of the fresh air channel and the blow-by channel are thus parallel to each other at least in the region of the mouths in the mixing housing.
  • the flow of both channels introduced into the mixing housing is also essentially parallel to one another. This avoids that the fresh air flows over the mouth of the blow-by channel. The resulting noise in the overflow are thus also avoided. Thereby, the noise in the channel system can be reduced.
  • a control body is rotatably arranged in the mixing housing, which regulates a flow of the exhaust gas recirculation passage and the fresh air passage depending on each other.
  • a control body is rotatably arranged in the mixing housing, which regulates a flow of the fresh air channel, the blow-by channel and the exhaust gas recirculation channel depending on each other.
  • a blow-by channel outlet cross-section and a fresh air duct outlet cross-section are arranged in a plane.
  • the plane can have any angle to the central channel axes. This avoids that there is an overflow of the blow-by channel mouth.
  • the plane is arranged to the channel centerlines hired to improve the controllability.
  • control body is mounted eccentrically on a shaft.
  • shaft is arranged outside a flow cross-section of the exhaust gas recirculation channel.
  • Butterfly valve with such a control body a pressure loss minimizing control of two channels is possible.
  • control body is a flap.
  • a flap is an easy way to regulate the flow of the exhaust gas recirculation channel and the fresh air channel depending on each other.
  • control body on a first flap, which controls the fresh air passage and the blow-by channel, and a second flap, which regulates the exhaust passage, and which is connected to the first flap on. Due to the design with two flaps, the arrangement of the shaft to the valve seat can be done with significantly less accurate tolerance.
  • the shaft is preferably arranged outside of a Haupt penströmquerargues the fresh air passage and the exhaust gas recirculation passage.
  • the shaft is thus not in the flow of the mixed stream in the mixing housing in the direction of the intake passage.
  • the flow is not disturbed by the shaft, resulting in a low flow resistance, which means that larger amounts of mixed stream can be discharged to the intake passage and thus to the internal combustion engine.
  • the fresh air duct and the blow-by duct are integrated in a one-piece connection housing.
  • the connection housing is a separate part which can be fastened to the mixing housing.
  • the mixing housing is connected directly to the connection housing via a flange surface.
  • the connection housing can be easily connected to the mixing housing, so that the channel system is even more economical to produce.
  • the mixing housing has three flange surfaces. At the flange surfaces which open into the mixing housing channels and emerging from the mixing housing intake are connected, wherein for the blow-by channel together with the fresh air duct only a flange is provided.
  • the channels can be connected via the flange easily with the mixing housing, so that the channel system is more economical to produce.
  • the mixing housing is formed integrally with an actuator housing, in which an actuator is arranged, via which the shaft of the control body is actuated. This reduces the number of parts and reduces assembly costs.
  • the channel system can be made more economical.
  • FIG. 1 shows a perspective view of a channel system 10 according to the invention for an internal combustion engine.
  • the duct system 10 has a mixing housing 14 into which a blow-by duct 18, a fresh air duct 22, can be supplied via the fresh air and an exhaust gas recirculation duct 26, which recirculates exhaust gas to the internal combustion engine, open.
  • the blow-by channel 18 connects the crankcase with the mixing housing 14.
  • a mixed flow of blow-by gas, fresh air and recirculated exhaust gas formed in the mixing housing 14 can be discharged via an intake passage 30 connected to the mixing housing 14.
  • the mixing housing 14 forms a flange surface 34, to which an integral connection housing 38 can be attached by means of screws 42 (a screw 42 is shown by way of example).
  • a blow-by connection piece 46 and a fresh air connection piece 50 are arranged, which form part of the blow-by channel 18 and the fresh air channel 22.
  • Blow-By connection piece 46 and fresh air connection piece 50 are arranged at the connection housing 38 substantially at right angles to each other.
  • FIG. 2 shows a side view of the vertically cut channel system 10.
  • This figure shows that the blow-by channel 18 is bent by approximately 90 °, so that the blow-by channel 18 and the fresh air channel 22, which are substantially perpendicular to each other in the connection housing 38 integrated , Open parallel to the mixing housing 14.
  • a blow-by channel central axis 51 is thus arranged in the region of a blow-by channel opening 52 parallel to a fresh air channel center axis 53.
  • a blow-by duct outlet cross-section 55 and a fresh air duct outlet cross-section 56 is arranged.
  • the blow-by channel outlet cross-section 55 and the Fresh air duct outlet cross-section 56 are additionally arranged in a plane 58, whereby an overflow of the blow-by duct mouth 52 is avoided by a fresh air flow.
  • first flap 70 is arranged, which regulates the flow from the blow-by channel 18 and the fresh air duct 22.
  • the first flap 70 is in the form of a tongue (see FIG. 3 ), with which the blow-by channel mouth 52 and the fresh air duct mouth 54 to close or open.
  • the first flap 70 has a smaller width B than in the region of the fresh-air channel mouth 54
  • FIG. 2 shown first flap 70 is shown in a middle position in which the blow-by channel mouth 52 and the fresh air duct mouth 54 are not fully open or closed.
  • the control body 66 additionally has a second flap 78, which regulates the opening cross section of the exhaust gas recirculation channel 26 and is fastened to the first flap 70 via a spacer 82.
  • the first flap 70 is mounted eccentrically on a shaft 86, via which the first flap 70 together with the second flap 78 are rotatably arranged in the mixing housing 14.
  • the shaft 86 is disposed outside a Haupt barnströmquerterrorisms the fresh air passage 22 and the exhaust gas recirculation passage 26, so that the flow through the shaft 86 is not disturbed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP17193450.8A 2016-09-29 2017-09-27 Système à canaux pour un moteur à combustion interne Active EP3301290B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016118463.2A DE102016118463A1 (de) 2016-09-29 2016-09-29 Kanalsystem für eine Verbrennungskraftmaschine

Publications (2)

Publication Number Publication Date
EP3301290A1 true EP3301290A1 (fr) 2018-04-04
EP3301290B1 EP3301290B1 (fr) 2019-07-24

Family

ID=59974224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17193450.8A Active EP3301290B1 (fr) 2016-09-29 2017-09-27 Système à canaux pour un moteur à combustion interne

Country Status (2)

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EP (1) EP3301290B1 (fr)
DE (1) DE102016118463A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021153196A1 (fr) * 2020-01-31 2021-08-05 株式会社デンソー Dispositif de vanne de recirculation des gaz d'échappement

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5884612A (en) * 1996-05-22 1999-03-23 Nippon Soken, Inc. Gas ventilation system for internal combustion engine
DE10320857A1 (de) * 2003-05-09 2004-11-25 Daimlerchrysler Ag Brennkraftmaschine mit Kraftstoffdirekteinspritzung
DE102009056544A1 (de) * 2008-12-04 2010-06-24 Mann + Hummel Gmbh Verbrennungsmotor mit einem Turbolader und einer Rückführung für die Abgase
DE202014100190U1 (de) * 2014-01-16 2014-02-12 Ford Global Technologies, Llc Niederdruck-EGR-Ventil
EP2823175A1 (fr) * 2012-03-06 2015-01-14 Pierburg GmbH Dispositif d'admission de gaz d'échappement pour un moteur à combustion interne
WO2016097566A1 (fr) * 2014-12-17 2016-06-23 Valeo Systemes De Controle Moteur Vanne comportant des moyens d'actionnement entre deux conduits d'entrée
JP2017002827A (ja) * 2015-06-11 2017-01-05 スズキ株式会社 エンジンの清浄装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5611204A (en) 1993-11-12 1997-03-18 Cummins Engine Company, Inc. EGR and blow-by flow system for highly turbocharged diesel engines
US5572979A (en) 1995-07-05 1996-11-12 Ford Motor Company Engine air induction system
DE10054264A1 (de) 2000-11-02 2002-05-08 Opel Adam Ag Saugrohranlage für eine Brennkraftmaschine
JP2002371920A (ja) 2001-06-18 2002-12-26 Toyota Motor Corp 排気ガス再循環装置
JP4536105B2 (ja) 2007-11-19 2010-09-01 株式会社デンソー 内燃機関の吸気装置
DE102014200699A1 (de) 2014-01-16 2015-07-16 Ford Global Technologies, Llc Niederdruck-EGR-Ventil
DE102014114968B4 (de) 2014-10-15 2021-01-21 Pierburg Gmbh Regelvorrichtung für eine Verbrennungskraftmaschine
DE102015119432B3 (de) 2015-11-11 2017-02-02 Ford-Werke Gmbh Einlasssystem für eine Verbrennungskraftmaschine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5884612A (en) * 1996-05-22 1999-03-23 Nippon Soken, Inc. Gas ventilation system for internal combustion engine
DE10320857A1 (de) * 2003-05-09 2004-11-25 Daimlerchrysler Ag Brennkraftmaschine mit Kraftstoffdirekteinspritzung
DE102009056544A1 (de) * 2008-12-04 2010-06-24 Mann + Hummel Gmbh Verbrennungsmotor mit einem Turbolader und einer Rückführung für die Abgase
EP2823175A1 (fr) * 2012-03-06 2015-01-14 Pierburg GmbH Dispositif d'admission de gaz d'échappement pour un moteur à combustion interne
DE202014100190U1 (de) * 2014-01-16 2014-02-12 Ford Global Technologies, Llc Niederdruck-EGR-Ventil
WO2016097566A1 (fr) * 2014-12-17 2016-06-23 Valeo Systemes De Controle Moteur Vanne comportant des moyens d'actionnement entre deux conduits d'entrée
JP2017002827A (ja) * 2015-06-11 2017-01-05 スズキ株式会社 エンジンの清浄装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021153196A1 (fr) * 2020-01-31 2021-08-05 株式会社デンソー Dispositif de vanne de recirculation des gaz d'échappement
JP2021121735A (ja) * 2020-01-31 2021-08-26 株式会社デンソー Ｅｇｒ弁装置

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Publication number Publication date
DE102016118463A1 (de) 2018-03-29
EP3301290B1 (fr) 2019-07-24

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